
where \(\mu _n = |E_F \sqrt{2}/((n+1/2) \Delta _0)|\) . The level spacing \(\Delta ^2_0/(2E_F)\)  in Eq. (REF ) is in agreement with the result \(\approx 0.85 \Delta ^2_0/(2E_F)\)  from Eq. (10) in Ref. [1]} with \(\Delta (\mathbf {r})=\Delta _0 \text{tanh}(r/\xi _V) e^{-i \theta }\) . We set \(\Delta _0 = 1\)  meV, \(\xi _V= 30\)  nm, and \(k_F = 9\)  nm\(^{-1}\) .
